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CVE-2026-57197: Asterisk crashes playing corrupted OGG/Speex audio
CVE-2026-57197 · published today
Summary
Asterisk versions before the latest updates can crash if they try to play an OGG/Speex audio file that is malformed. An attacker who can place such a file on the system and get Asterisk to play it could cause the service to stop working. Update Asterisk to the newest release or apply the official patch to prevent the crash.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| asterisk | asterisk | < 20.20.1 |
| asterisk | certified-asterisk | < 20.7-cert11 |
Original advisory text
Asterisk: Heap Buffer Overflow in OGG/Speex File Playback (format_ogg_speex)
Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an unbounded `memcpy` of `OGG/Speex` packet data in `format_ogg_speex` can cause a heap buffer overflow and crash Asterisk when reading a file containing corrupted Speex audio. The attacker must create the file and make it available to Asterisk either through sufficiently elevated privileges or by convincing an Asterisk administrator to make it available. Asterisk must also be configured to play that file. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.
References
- https://github.com/asterisk/asterisk/security/advisories/GHSA-8jhw-m2hg-vp3h x_refsource_CONFIRM
- https://github.com/asterisk/asterisk/commit/0a2c1d9e910f7c4dfffa05e328accb8a9699... x_refsource_MISC
- https://github.com/asterisk/asterisk/commit/0e6d761ed83f1671632c91805252767eae85... x_refsource_MISC
- https://github.com/asterisk/asterisk/commit/1cf189549994e0898954c814ce5a023cd969... x_refsource_MISC
- https://github.com/asterisk/asterisk/commit/29026ece6fdd1834bb8f49c013ef163745ff... x_refsource_MISC
- https://github.com/asterisk/asterisk/commit/336ebe762bf6dfaf279796700de8ab51f7ac... x_refsource_MISC
- https://github.com/asterisk/asterisk/commit/ccec146953b5e13043a36663af84e5a50ca6... x_refsource_MISC
- https://github.com/asterisk/asterisk/commit/dbcf38933866f0ddd023bc1814a78d4c750b... x_refsource_MISC
- https://github.com/asterisk/asterisk/releases/tag/20.20.1 x_refsource_MISC
- https://github.com/asterisk/asterisk/releases/tag/21.12.3 x_refsource_MISC
- https://github.com/asterisk/asterisk/releases/tag/22.10.1 x_refsource_MISC
- https://github.com/asterisk/asterisk/releases/tag/23.4.1 x_refsource_MISC
- https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11 x_refsource_MISC
- https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3 x_refsource_MISC
- https://github.com/asterisk/asterisk/tree/24.0.0-pre1 x_refsource_MISC
Type
CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
Timeline
Published27 Oct 2026
Updated27 Oct 2026
First seen27 Oct 2026
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